MLA

Hughes, Langston, 1902-1967. The Southernaires. Box 10 (Oversize), folder 122. 1893-1954. https://collections.library.yale.edu/catalog/16198561.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 10 (Oversize), folder 122"])(1893-1954)[The Southernaires]. https://collections.library.yale.edu/catalog/16198561.